Bottom dump divided slings for laundry extractors



A. MILLER Dec. 6, 1960 BOTTOM DUMP DIVIDED' SLINGS FOR LAUNDRY EXTRACTORS Filed April 6, 1959 3 Sheets-Sheet 1 IN V EN TOR.

BY ABE MILLER (ww. em

ATTORNEYS A. MILLER BOTTOM DUMP DIVIDED SLINGS FOR LAUNDRY EXTRACTORS Filed April 6, 1959 3 Sheets-Sheet 2 INVENTOR.

ABE MILLER (mg g GAR l l 46 45 8 l L ATTORNEYS Dec. 6, 1960 A. MILLER 2,963,311

BOTTOM DUMP DIVIDED SLINGS FOR LAUNDRY EXTRACTORS I Filed April 6, 1959 3 Sheets-Sheet 5 INVENTOR.

ABE MILLER ATTORNEYS United States Patent BOTTOM DUMP DIVTDED SLINGS FOR LAUNDRY EXTRACTORS Abe Miller, Detroit, Mich., assignor to Miller Laundry Machinery Company, Detroit, Mich.

Filed Apr. 6, 1959, Ser. No. 804,296

1 Claim. (Cl. 294-69) This invention relates to bottom dump slings for laundry extractors, and more particularly to improvements in slings such as are illustrated in my previously filed application, Ser. No. 740,761, filed June 9, 1958 now Patent No. 2,904,183 dated Sept. 15, 1959.

An object of this invention is to provide a bottom dump sling with a vertical partition dividing it into sections to sectionalize the load and thus minimize its shifting; and which enables the sling to be dumped in sections and which centers the sling on a cone of an extractor; and inhibits the sling against shifting when a drum of the extractor rotates; and prevents the laundry from becoming caught on any part of the extractor cone or loading cart cone; and which reenforces the sling against stresses and strains.

Objects and advantages will become apparent upon reading the following description and the attached drawings. In these drawings:

Fig. 1 is a perspective view of a novel sling.

Fig. 2 is a cross-sectional on line 2-2, Fig. 1.

Fig. 3 is a top view.

Fig. 4 shows a loaded sling in a loading cart.

Fig. 5 shows a loaded sling out of the cart.

Fig. 6 shows a loaded sling in an extractor.

Fig. 7 shows a sling of modified form.

Fig. 8 shows the sling of Fig. 7 loaded and in an extractor drum.

The drawings show a sling 10 comprising a cylinder 11 made of a thin, flexible, sheet material, porous for the passage of water and having at its lower edge, a series 11a of triangular flaps 12. Reenforcing straps 13 have at their ends grasping rings 1415.

Cylinder 11 is divided into halves by a diametrical partition 20 formed of flexible sheets 21 connected at upper edges 22, and joined together and to the cylinder at side edges 23. Their bottom edges are disconnected from each other and they are otherwise free to be separated. They have enough slack so that they can be bulged to form a pocket 24.

Fig. 4 shows a sling 10 being loaded with laundry L and inside a wheeled loading cart 30 formed with a central cone 31 covered by sling partition 20 and particularly pocket 24. Flaps 12 are drawn upwards. Grasping rings 14 are hooked over hooks 32 of a support plate 33 provided with a central ring 34 connected to a cable or lifting means 35.

Plate 33 also has side hooks 36 for grasping rings of the sling as the sling (Fig. 5) is lifted from cart 30 and lowered into an extractor.

Fig. 6 shows the loaded sling inside an extractor 40 having an outer shell 41 a central drive cone 43 and an inner rotating drum 42 having a central cone 44 fitted over drive cone 43. Drive shaft 45 extends into drive cone 43 and is driven by pulleys 4648, belt 47, and motor 49. The extractor also has a cover 50.

As seen in Fig. 6, the sling is arranged with its partition spread out or bulged over the drum cone 44, with cylinder 11 fitted around the inside of rotating drum 42,

Patented Dec. 6, 1960 and with flaps 12 folded over the laundry to hold it down during extraction.

Figs. 7-8 show a modified form of sling and also show more in detail the dimensioning of the sling, an important characteristic.

A sling is designed to fit a specific size of extractor. Using as an example an extractor of 54 inch diameter, 31 inch drum height, and having a cone 19 inches high, 14 inch top diameter, and 20 inch bottom diameter, the sling will be dimensioned substantially as follows: cylinder 11 (b), 31 inches long, 54 inches diameter; and flaps 12 will be (c), 17 inches plus (d) 31 inches plus (e) 20 inches or a total of 68 inches long. Flaps 12 thus will be long enough (0) to extend across the bottom of the extractor to the cone, (d) up the side of the cone to the top of the extractor, then (e) across the top of the load in the extractor from the center to the outer wall of the drum. Also, the flaps will be long enough to extend well above the top of the extractor to be accessible for raising the loaded sling.

Figs. 7-8 show how I provide cylinder 11 with an upper skirt 51, 8 inches long, which may be folded inwardly (a) from the upper edge of the cylinder (b) over the load in the sling to help hold down that load during extraction. In such a case, the flaps may be reduced in length by the equivalent 8 inches, the covering of the load being accomplished only in part now by the flaps and in part also by the top skirt of the cylinder.

The term cylinder as here used applies only to that part (b) of the sling which extends along the side of the rotating drum and where a drum is 31 inches high as here shown, the cylinder is also 31 inches in length. It will be understood that the upper skirt 51 of about 8 inches in length is not properly a part of the cylinder as the term is here used but is really a top skirt for overlying the load in the sling.

This invention may be further developed within the scope of the following attached claims. Accordingly, it is desired that the foregoing description be read as being merely illustrative of an operative embodiment of this invention and not in a strictly limiting sense.

I claim:

A sling and container device for receiving laundry loaded into the device from above and for transporting said laundry to and from and for holding same in an extractor rotating on a vertical axis and having a bottom, a cylindrical wall, and an open top, and for dumping said laundry out of and down from the device, said device comprising a cylindrical body portion of substantially the height and diameter of the extractor with which it is to be used, and a skirt portion comprising a plurality of spaced flaps of flexible material having their upper edges coinciding with and secured to the lower edge of the body portion, the flaps being side by side around the lower edge of the body portion, the flaps depending from the body portion and being of a length considerably greater than the height of the body portion whereby they may be moved from their normal or unloading position, depending from the body portion, to a loading position where they extend horizontally inwardly from the body portion to form a sling bottom, on the bottom of the extractor, to near the axis of the extractor, and then gathered and turned upwardly from the bottom of the extractor to a central gathering point aligned with the extractor axis but well above the upper edge of the body portion to form an inner wall wherein laundry may be contained between the body and the inner wall and on top of the sling bottom, the lower or free ends of the flaps each having means for detachably interlocking it with a central gathering axially arranged sling hook means when the flaps are turned from the body portion and then up from the extractor bottom and gathered into loading position, the

upper edge of the body portion having several peripherally spaced means for detachably interlocking it at a number of points thereof with a sling hook means at the upper edge of the body portion, and the flaps also being of sufficient length to be folded from their inner Wall forming portions to the body portion over the top of the laundry contained in the sling to form a cover therefor; said sling having a vertical diametrical partition extending across it and comprising two, thin, flexible sheets joined to each other at their top edges, and joined to each other and to the cylinder at their side edges and disconnected from each other along their bottom edges and with center portions of each of the sheets being slack.

References Cited in the file of this patent UNITED STATES PATENTS 

